Gun lock



FIG. 1 is a front right side isometric view showing our new design;

FIG. 2 is a front left isometric view showing our new design;

FIG. 3 is front elevational view showing our new design;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a rear elevational view showing our new design;

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof. 

The ornamental design for a gun lock, as shown and described. 